Don H Hot Springs Village , AR April 10, 2017 Appliance: Frigidaire Electric Range PLES389DCB Frigidaire Range Ples389dcb: Oven light clock etc did not work stove top elements worked fine. How to replace Clock Timer. Appliance Parts Pros told me it was the controller. I ordered one. Replacement was simple once I learned that I did not need to take that whole panel off. Just unscrew the plastic nuts under each element knob and lift the panel up. There it is. 5 screws and swap the wires over and it works like new again. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes